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Flight Reliability

AS 2378 · Alaska Airlines

Fairbanks → Anchorage (FAI–ANC)98% of its flights flew this route. The rest (BOI–PUW, MRY–SAN) are included in these numbers.

100
Nerd Approved
WanderNerd Reliability Score
99%
Arrive within 15 minutes
12 min early
Average arrival delay
0.7%
Cancelled
14 min early
Median arrival delay

Based on 136 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 100% of the time, against 95% between 3–6 AM.

Monday has been the better bet.

A small edge: 100% on time on Mondays against 95% on Wednesdays.

Better than the FAI–ANC route average.

AS 2378 arrived on time 99% of the time, versus 86% across the FAI–ANC route.

Well ahead of the Alaska Airlines network.

AS 2378 arrived on time 99% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon100%(18 flights)
  • Tue100%(19 flights)
  • Wed95%(20 flights)
  • Thu100%(20 flights)
  • Fri100%(20 flights)
  • Sat100%(19 flights)
  • Sun100%(19 flights)
On-time by departure window
  • 3–6 AM95%(19 flights)
  • 6–9 AM100%(114 flights)
  • 3–6 PM—(1 flights)
  • 9 PM–12 AM—(1 flights)
On-time trend by month
95%
May

Jun 100% → May 95% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%19
July 2025100%31
August 2025100%31
September 2025100%29
May 202695%19
Departures on time
99%
Diverted
0%
Flights flown
135
Months covered
9

Same route, other flights

Keep nerding

Based on 136 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.